TY  - RPRT
TI  - Eocene rocks in northeast Washington: Radiometric ages and correlation
AU  - Robert Carl Pearson
AU  - John D. Obradovich
PY  - 1977
DO  - 10.3133/b1433
UR  - https://pubs.usgs.gov/publication/b1433
ID  - b1433
ER  -